The
Doctor's not the man he was. But what has he become? An old enemy --
Faction
Paradox, a cult of time-travelling voodoo terrorists -- is finally making
him one of its own. These rebels have a mission for him, one that will deliver
him into the hands of his own people, who have decreed that he must die. Except
now, it seems, the Time Lords have a mission for him too...

A
gargantuan structure, hewn from solid bone, has appeared in the skies over
Gallifrey. Its origin and purpose are unknown, but its powers threaten to tear
apart the web of time and the universe with it. Only The Doctor can get
inside... but soon he will learn that nothing is safe and nothing
sacred.

Shot by both sides, confronted by past sins and future
crimes, The Doctor finds himself a prisoner of his own actions. With options
finally running out, he must face his most crushing defeat or take one last,
desperate chance for salvation...

Notes:

This is another in the series of original adventures
for the Eighth
Doctor.